Base | Representation |
---|---|
bin | 101101010010… |
… | …011111010010 |
3 | 211100011121111 |
4 | 231102133102 |
5 | 11014402320 |
6 | 1102243534 |
7 | 202624600 |
oct | 55223722 |
9 | 24304544 |
10 | 11872210 |
11 | 6779849 |
12 | 3b865aa |
13 | 25c8a9c |
14 | 1810870 |
15 | 1097a5a |
hex | b527d2 |
11872210 has 24 divisors (see below), whose sum is σ = 24859980. Its totient is φ = 4070304.
The previous prime is 11872187. The next prime is 11872213. The reversal of 11872210 is 1227811.
It can be written as a sum of positive squares in 2 ways, for example, as 10870209 + 1002001 = 3297^2 + 1001^2 .
It is not an unprimeable number, because it can be changed into a prime (11872213) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11625 + ... + 12604.
Almost surely, 211872210 is an apocalyptic number.
11872210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
11872210 is an abundant number, since it is smaller than the sum of its proper divisors (12987770).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11872210 is a wasteful number, since it uses less digits than its factorization.
11872210 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24250 (or 24243 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 22.
The square root of 11872210 is about 3445.6073484946. The cubic root of 11872210 is about 228.1272630038.
The spelling of 11872210 in words is "eleven million, eight hundred seventy-two thousand, two hundred ten".
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